*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:#f4f6fb;color:#1f2937;min-height:100vh}
.wrap{max-width:860px;margin:0 auto;padding:24px 16px 60px}
header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;flex-wrap:wrap;gap:10px}
.logo{font-size:26px;font-weight:800}
.free{font-size:12px;background:#dcfce7;color:#15803d;border-radius:20px;padding:3px 10px;margin-left:8px;vertical-align:middle}
.sub{color:#6b7280;font-size:13px;margin-top:2px}
nav{display:flex;gap:8px}
nav a{text-decoration:none;font-size:14px;color:#374151;background:#fff;padding:9px 16px;border-radius:10px;box-shadow:0 2px 8px rgba(0,0,0,.05)}
nav a.on{background:#2563eb;color:#fff}
.card{background:#fff;border-radius:14px;box-shadow:0 2px 12px rgba(0,0,0,.06);padding:22px;margin-bottom:16px}
h2{font-size:16px;margin-bottom:14px}
#drop{border:2px dashed #93c5fd;border-radius:12px;padding:36px 16px;text-align:center;color:#3b82f6;cursor:pointer;transition:.2s;background:#f8fbff}
#drop:hover,#drop.over{background:#eff6ff;border-color:#2563eb}
#drop .big{font-size:44px}
#drop p{margin-top:8px;font-size:14px;color:#4b5563}
#filelist{margin-top:12px}
#filelist .f{display:flex;justify-content:space-between;font-size:13px;padding:7px 10px;background:#f3f4f6;border-radius:8px;margin-bottom:6px;gap:8px}
.settings{display:grid;grid-template-columns:1fr 1fr;gap:14px 20px;margin-top:6px}
.set label.lbl{display:block;font-size:13px;color:#4b5563;margin-bottom:6px;font-weight:600}
.set select,.set input[type=text],.set input[type=password]{width:100%;padding:9px 10px;border:1px solid #d1d5db;border-radius:8px;font-size:14px}
.radio-row{display:flex;gap:12px;font-size:13px;flex-wrap:wrap}
.btn{display:inline-block;background:#2563eb;color:#fff;border:none;border-radius:10px;padding:12px 30px;font-size:15px;font-weight:700;cursor:pointer;margin-top:18px;text-decoration:none}
.btn:hover{background:#1d4ed8}.btn:disabled{background:#9ca3af;cursor:not-allowed}
.btn.gray{background:#e5e7eb;color:#374151;padding:8px 16px;font-size:13px;margin-top:0}
.btn.red{background:#fee2e2;color:#b91c1c;padding:6px 12px;font-size:12px;margin-top:0}
.btn.small{padding:6px 12px;font-size:12px;margin-top:0}
.btn.green{background:#16a34a}
#progress{display:none;margin-top:14px}
#progress .bar{height:10px;background:#e5e7eb;border-radius:6px;overflow:hidden}
#progress .bar i{display:block;height:100%;width:0;background:#2563eb;transition:width .15s}
#progress p{font-size:12px;color:#6b7280;margin-top:6px}
.result{border:1px solid #e5e7eb;border-radius:10px;padding:14px;margin-bottom:12px;display:flex;gap:14px}
.result img.qr,.result .qrbox{width:96px;height:96px;flex-shrink:0}
.result .info{flex:1;min-width:0}
.result .fn{font-weight:700;font-size:14px;word-break:break-all}
.result .link{display:flex;gap:8px;margin-top:8px}
.result .link input{flex:1;font-size:12px;padding:7px;border:1px solid #d1d5db;border-radius:7px;background:#f9fafb;min-width:0}
.result .meta{font-size:12px;color:#6b7280;margin-top:8px;line-height:1.8}
.result .meta b{color:#111827}
.tag{display:inline-block;font-size:11px;padding:2px 8px;border-radius:20px;background:#dbeafe;color:#1d4ed8;margin-right:6px}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:9px 8px;border-bottom:1px solid #f3f4f6;text-align:left;vertical-align:top}
th{color:#6b7280;font-weight:600;font-size:12px}
td .acts{display:flex;gap:6px;flex-wrap:wrap}
.empty{color:#9ca3af;font-size:13px;text-align:center;padding:20px}
.hint{font-size:12px;color:#6b7280;line-height:1.8}
.warn{background:#fef3c7;border:1px solid #f59e0b;color:#92400e;border-radius:10px;padding:10px;font-size:13px;margin:14px 0}
.err{background:#fee2e2;border:1px solid #f87171;color:#991b1b;border-radius:10px;padding:10px;font-size:13px;margin:14px 0}
.okmsg{background:#dcfce7;border:1px solid #4ade80;color:#166534;border-radius:10px;padding:10px;font-size:13px;margin:14px 0}
.center{text-align:center}
.icon{font-size:56px}
h1{font-size:19px;margin:12px 0;word-break:break-all}
.pwd input{padding:11px;font-size:16px;border:1px solid #d1d5db;border-radius:8px;width:200px;text-align:center;letter-spacing:2px}
.preview{margin-top:16px}
.preview img,.preview video{max-width:100%;max-height:380px;border-radius:10px}
.preview audio{width:100%}
.preview iframe{width:100%;height:380px;border:1px solid #e5e7eb;border-radius:10px}
.preview pre{text-align:left;background:#111827;color:#e5e7eb;border-radius:10px;padding:14px;max-height:380px;overflow:auto;font-size:12px;white-space:pre-wrap;word-break:break-all}
.foot{margin-top:20px;font-size:12px;color:#9ca3af}
.foot a{color:#9ca3af}
footer{font-size:12px;color:#9ca3af;text-align:center;margin-top:8px;line-height:2}
footer a{color:#6b7280}
.row{display:flex;gap:10px;justify-content:center;margin-top:14px;flex-wrap:wrap}
.linkbox{display:flex;gap:8px;margin-top:12px}
.linkbox input{flex:1;font-size:12px;padding:8px;border:1px solid #d1d5db;border-radius:7px;background:#f9fafb}
.item{display:flex;justify-content:space-between;align-items:center;padding:12px;border:1px solid #eee;border-radius:10px;margin-bottom:10px;gap:10px}
.item .fn{font-size:14px;font-weight:600;word-break:break-all}
.item .sz{font-size:12px;color:#9ca3af}
#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);background:#111827;color:#fff;font-size:13px;padding:11px 20px;border-radius:10px;opacity:0;transition:.25s;pointer-events:none;max-width:90vw}
#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
code{background:#f3f4f6;padding:1px 6px;border-radius:5px;font-size:12px}
@media(max-width:640px){.settings{grid-template-columns:1fr}.result{flex-direction:column}.result img.qr,.result .qrbox{width:120px;height:120px}}